发明名称 ANORDNING FOR DRAGNING AV LEDNING GENOM BRANDTETANDE GENOMFORING GENOM ETT BYGGNADSELEMENT
摘要 A device for laying conduit (32) through a fire-sealing lead-through body (1) in which there is disposed an elastic fire retardant foamed material (4). The foamed material is kept compressed in the lead-through and after executed laying surrounds the conduit sealingly. The device comprises a sleeve (25) slit up at the ends (28, 29) to form funnel-shaped flarable sleeve and openings, and further comprises a conical driving tip (24) engageable with the sleeve insertion end, said tip relinquishing engagement with the sleeve end on passing through the foamed material.
申请公布号 SE420786(B) 申请公布日期 1981.10.26
申请号 SE19800002047 申请日期 1980.03.14
申请人 * TELEFON AB L M ERICSSON 发明人 B * LEGERIUS;H W * SIEBERT
分类号 F16L5/02;H02G1/00;H02G3/22;(IPC1-7):02G3/22;16L5/02 主分类号 F16L5/02
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